Inevitably, people are going to have some sort of issue or issues with Destiny's gameplay or mechanics. Nearly every game does, even the mighty GTA:V has people complaining about the online component.
If you are worried about anything with Destiny, post it here, but try to stick to gameplay and mechanics. Everyone knows people want it for PC. If you want to have an argument, that's fine as well, but "It's Bungie" isn't an argument to me. I haven't played Halo, I've been a Playstation guy for 15 years.
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There should only be one concern, and that's with the community. The community is always the first part of a game to fall short of expectations. Trolls, haters, fanboys, etc all exist among the community and all are the most likely to ruin someone's experience before anything else will.